Clip for stentering-machines.



Al A. WHTLEY.

Patented May 25, 1915.

2 SHEETS-SHEET 1.

WITNESS/ES THE NORRIS PETERS Co, FHOTG-LITHQ. WASHINGTONY D4 C.

A. A. WHITLEY.

CLIP FOR STENTERING MACHINES. APPLlCATION FILED 1AN.27. 1914.

Patented May 25, 1915.

2 SHE'ETS-SHEET 2.

W/ T/V'SS ES 9.6 HLFRED Has T//v M//f/ rLEy ill E ALFRED AUSTIN WHITLEY,0F MANCHESTER, ENGLAND.

CLIP FO STENTERING-MACHIES.

Specication of Letters Patent.

Patented May 25, 1915.

Application filed January 27, 1914. Serial No. 814,779.

T0 all 'wh-0m t may concern Beit known that I, ALFRED AUSTIN WHIT- LEY,a subject of the King of Great Britain, residing at Clifton View,Prestwich Park south, near Manchester, in the county of Lancaster,England, have invented new and useful Improvements in Clips forStentering-Machines, of which the following is a specification.

In the specification of Letters Patent No. 903,144 A. D. 1908, Idescribe and claim clips in which the gripping part of the upper jaw ismade to turn upon a pin on the main, or body, part of the said jaw.rIhis pin, I have found, is subject to a considerable amount of wear,and it is the object of my present invention to prevent this wearnasfar. as possible, and also to make the clips so that wedging action isobtained in gripping in such manner that there is a constant pressurebetween the gripping jaws whatever may be the thickness of the materialbeing acted upon.

According to my present invention, I make the part of the main, or bodyportion which bears on the back of the gripping part, cam-shaped, or itmay even be concentric with the center on which the upper jaw turns,provided that there is a wedging action between the main, or body,portion and the back of the said gripping part and I combine, or engage,the said gripping part with the main, or body, part so that there issufficient play to allow of the requisite movement of the end of themain, or body, part under the said wedging action.

I will describe with reference to the accompanying drawings,constructions in accordance with my invention premising that I do notlimit myself to the precise constructions illustrated.

Figure 1 is a front view, Figs. 2 and 3 are side elevations, Fig. 2showing the position when the clip is gripping the fabric and Fig. 3 theposition when the clip is out of action. Fig. 4 is a front view andFigs. 5 and 6 are side elevations, partly in section on the line A. B.Fig. 4 of a modification, Fig. 5 showing the position when the clip isout of action and Fig. 6 the position when the clip is gripping thefabric.

I provide each end of the gripping part 1, of the upper jaw with a smalljaw, 2, and I provide a lug, or projection, 3 at each end of thecam-shaped, or wedging, part, or parts, 4, of the main, or body, portion5 which lugs,

or projections, 3 are respectively embraced by the said small jaws, 2. Apin 6 crosses each of the said small jaws, 2, above the correspondinglug, or projection, 3' to keep the gripping part in place. The wholelength of the end of the main, or body, portion 5 may be made to act asa wedge, on the back of the gripping part, 1 or only a part, or parts,thereof may be made to so act; for example, there may be (as shown inthe drawings) such a part at each end of the upper, or body, portionwith a gap 7 between them, with which may engage a rib, or projection, 8from the corresponding portion of the gripping part 1.

The modification shown in Figs. 4, 5 and 6 is, in principle, the same asthat shown in Figs. 1, 2 and 3, and corresponding parts are marked withthe same reference numerals. The projections from each end of thecamshaped, or wedging, parts 4, of the main, or body, portion 5, areconstituted by the ends of a pin 3 passed through the said main, orbody, part, and the small jaws, on the ends of the gripping part l, arerepresented by the parts 2, with which the ends 3 of the pin engage, theholes for such engagement being such as to give suflicient play for thewedging action. The pins 6, of the first described construction are ofcourse unnecessary in this modification. Y

I am aware that it has been proposed to provide the upper jaw with awedge-shaped bar loosely attached to its lower end, which bar shall begripped by the cloth and be drawn by it farther under the upper jaw andI make no claim to such an arrangement. The part which in my arrangementbears on the cloth is not wedge-shaped, but has its upper and lowerfaces parallel with each other and the desired e'ect is obtained bymeans of a rolling cam bearing on the said upper face so that there isno sliding or wedging action of the part which bears on the cloth and onopening my clip the cam instantly releases the gripper and no auX-iliary eccentric pin and hollow shaft release arrangement is required,such as is necessary in the aforesaid prior arrangement.

1. In a stentering clip, a pivoted upper jaw, a gripping part pivotallysuspended therefrom and having its upper and lower faces parallel, and acam shaped portion on the jaw body bearing against the upper face of thegripping part whereby a wedging aotion is eXerted only by thebearingofsaid cam-shaped portion of the-body of the jaw lupon the upperface of the gripping part7 substantially as described.

2. In a stentering clip, a pivoted upper jaw, a gripping part having itsupper and lower faces parallel, enlargements on the upper face of saidgripping part, a pivotal engagement between said enlargement and v theupper jaw, a cam shaped portion on the jaw body bearing against theupper face .of the .gripping part outside .the area of said ALFREDAUSTIN WHITLEY.

Witnesses z ERNALD SIMPSON Vloslfinmn MALCOLM SMEKUNST.

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